Who invented this sizing structure?
2006-09-17 01:59:46 · 7 answers · asked by Anonymous in Education & Reference ➔ Standards & Testing
If 'A' is for Area, then what does the 'B' stand for in the B1, B2, B3 series? Then what does the 'C' stand for in the next tier after that?
2006-09-17 02:12:05 · update #1
"A" is simply the designation given to the first of a series of standard shapes for sheets of paper.
There are also B1, B2, B3, etc., and C!, C2, C3, etc sizes. It's just a European standard.
2006-09-17 02:09:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I don't think the A or B stand for anything in particular. The C sizes relate to envelopes i.e. a flat sheet of A4 paper fits in a C4 envelopes fold it in half to A5 size and it fits in a C5 envelopes. The exception is the most common DL size envelope for A4 folded in to three - no idea where that comes from.
The A sizes were introduced in Europe because of the increasing use of various reproduction systems which could change the size of images by percentages. If you reduce an A size to a smaller or larger A size the image is always proportionately the same. There is some golden mathematical rule explaining this. The only time I have ever seen B sizes specified was on some old photocopiers and these sizes were not generally available - we used to cut bigger papers down for people with such copiers.
2006-09-17 02:23:29 · answer #2 · answered by felineroche 5 · 0⤊ 0⤋
Area
2006-09-17 02:09:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It doesn't have any meaning whether the paper is marked as series A, B or C, what can be explained is that all these series are under ISO 216.
"ISO 216 specifies international standard (ISO) paper sizes, used in most countries in the world today. It is the standard which defines the well-known A4 paper size."
"ISO 216 defines two series of paper sizes: A and B. There is also a C series for envelopes, defined in ISO 269."
2006-09-17 02:24:10 · answer #4 · answered by Mecoves 3 · 0⤊ 0⤋
area
2006-09-17 02:02:01 · answer #5 · answered by Rohit_curious 2 · 0⤊ 0⤋
area..... so what does B stand for...?
2006-09-17 02:19:03 · answer #6 · answered by Girl Interrupted 2 · 0⤊ 0⤋
good old wilkipedia tells all
http://en.wikipedia.org/wiki/A4_paper_size
2006-09-17 02:10:04 · answer #7 · answered by Nutty Girl 7 · 0⤊ 0⤋